P313 Teletext 313 Dec26 20:20:10         ———————————————————————————  JAMMED LINES "SPOIL OFFER"   Thousands of people who bought a mobile telephone on the promise of unlimited free calls on Christmas Day were unable to get through, an MP has claimed. Andrew MacKinlay, MP for Thurrock, said he would be writing to Board of Trade President Michael Heseltine. A Mercury One-2-One spokesman said it had received complaints and had not anticipated such huge demand. ——————————————————————————————————————— Headlines 300 Regional 331 CONTRACT JOBS IN I.T. SEE p640 Next page Latest Regional Weather